<template>
  <div>
    <el-form :model="loginForm" class="loginContainer" :rules="rules" ref="loginForm" v-loading="loading">
      <h3 class="loginTitle">系统登录</h3>
      <el-form-item prop="username">

        <el-input type="text" auto-complete="false" v-model="loginForm.username" placeholder="请输入用户名"></el-input>
      </el-form-item>

      <el-form-item prop="password">
        <el-input type="password" auto-complete="false" v-model="loginForm.password" placeholder="请输入密码"></el-input>
      </el-form-item>

      <el-form-item prop="code">
        <el-input type="text" auto-complete="false" v-model="loginForm.code" placeholder="点击图片更换验证码"
                  class="changeImg"></el-input>
        <img :src="captchaUrl " @click="updateCaptcha"/>
      </el-form-item>
      <el-checkbox v-model="checked" class="loginRemember">记住我</el-checkbox>
      <el-button type="primary" style="width: 100%" @click="submitLogin">登录</el-button>

    </el-form>
  </div>
</template>

<script>
export default {
  name: "LoginView",
  data() {
    return {
      loginForm: {
        username: '',
        password: '',
        code: ''
      },
      checked: false,
      captchaUrl: '/captcha?time=' + new Date(),
      loading: false,
      rules: {
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'}
        ],
        code: [
          {required: true, message: '请输入验证码', trigger: 'blur'}
        ]
      }
    }
  },
  methods: {
    updateCaptcha() {
      this.captchaUrl = '/captcha?time=' + new Date();
    },
    submitLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true;
          this.postRequest('/login', this.loginForm).then(resp => {
            this.loading = false;
            if (resp) {
              //存储用户token
              //const tokenStr = resp.obj.tokenHead + resp.obj.token;
              const tokenStr = "Bearer " + resp.obj.token;
              console.log(tokenStr);
              window.sessionStorage.setItem('tokenStr', tokenStr);

              // 登录成功立即获取当前用户信息
              this.getRequest('/admin/info').then(resp => {
                if (resp) {
                  // 将当前登录的用户信息保存到sessionStorage中
                  window.sessionStorage.setItem('user', JSON.stringify(resp));
                  this.$store.commit('INIT_ADMIN', resp);
                }
              })

              //页面跳转
              let path = this.$route.query.redirect;
              this.$router.replace((path == '/' || path == undefined) ? '/home' : path).catch(error => {
                console.log(error)
              });
            }
          }).catch(() => {
            this.loading = false;
          })
        } else {
          this.$message.error('请输入所有字段！');
          return false;
        }
      });
    }
  },
}
</script>

<style>
.loginContainer {
  border-radius: 15px;
  background-clip: padding-box;
  margin: 180px auto;
  width: 350px;
  border: 1px solid #eee;
  padding: 15px 35px 15px 35px;
  background: #fff;
  box-shadow: 0 0 25px #cac6c6;
}

.loginTitle {
  margin: 5px auto 30px auto;
  text-align: center;
}

.loginRemember {
  text-align: left;
  margin: 0px 0px 15px 0px;
}

.changeImg {
  width: 250px;
  margin-right: 5px;
}

.el-form-item__content {
  display: flex;
  align-items: center;
}
</style>
